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FinnZ [79.3K]
3 years ago
7

If angle ABC measures 35 degrees and angle BAC measures 115 degrees, what’s the angle measure of DCB?

Mathematics
1 answer:
vichka [17]3 years ago
8 0

Answer:

<em>30 degrees</em>

Step-by-step explanation:

Assuming you are talking about a triangle, you would add 35 and 115 to get 150. Then subtract from 180.

35+115=150

180-150=30

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The sum of two segments are 75 cm, and one the segments are four times the other. Calculate the measurement of each segment
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The length of one segment is 15 cm and other segment is 60 cm

Step-by-step explanation:

Let x be the length of one segment and y be the length of other segment

Then according to given statement

x+y=75    Eqn 1

And

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x=4y        Eqn 2

Putting\ x=4y\ in\ equation\ 1

4y+y=75\\5y=75\\Dividing\ both\ sides\ by\ 5\\\frac{5y}{5}=\frac{75}{5}\\y=15\\Putting\ y=15\ in\ eqn\ 2\\x=4(15)\\x=60

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Keywords: Linear Equation, Variables

Learn more about linear equations at:

  • brainly.com/question/3783529
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Step-by-step explanation:

The (1 - <em>α</em>) % confidence interval for difference between two means is:

CI=(\bar x_{1}-\bar x_{2})\pm t_{\alpha/2,(n_{1}+n_{2}-2)}\times SE_{\bar x_{1}-\bar x_{2}}

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*Use a <em>t</em>-table for the critical value.

Compute the 80% confidence interval for difference between two means as follows:

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